Tenths

This 12-question quiz introduces multiplying decimals, sticking to numbers with just one digit after the point.

You will work out products like 2.0 x 0.8 = ? and 18.0 x 5.1 = ?, with a few true or false statements to judge.

The idea behind decimal multiplication is different from adding: you multiply as if the points were not there, then count the total decimal places in both factors and place the point that many spots from the right.

It is a small rule, but it is the one that keeps your answer from landing ten times too big or too small.

Recommended level: beginner to intermediate.